Pageslide directive

Hi, I made a directive not so long ago https://github.com/dpiccone/ng-pageslide which basically opens a div in an overlapping panel, it would be great if it can be inserted into the ui-utils package. 

I added it into the modules folder and ran the tests, they were all passing.

I also provided a new karma config files because from version 0.10 karma config have a slightly different format.